A Closer Look at Bacteria, Algae, and Protozoa

A Closer Look at Bacteria, Algae, and Protozoa — page 9
A CLOSER LOOK AT BACTERIA ALGAE AND PROTOzou function floats freely in the cytoplasm So do ribosomes structures that help the bacteria make proteins Many species have indepen dent pieces of DNA called plasmids that can be transferred to other bacteria during repro duction In some species agelatinous capsule encloses the cell wall WHERE BACTERIA LIVE on 0 Bacteria are found in a great variety of habitats One teaspoon 5 millili ters of fertile soil may Contain as many as 500 million individual bac teria Some species live on and within other living things such as animals or fungi a rela tionship known as symbiosis Bacteria in habit oceans deserts hot springs and even snow The bacteria Neisseria flava from the human nasal passage A W Rakosy EB Inc 14